Milos Raonic and Lucas Pouille beat Jo-Wilfried Tsonga and Daniil Medvedev respectively to move into the quarter-finals of the Stuttgart Open.Canadian Raonic, number six seed, beat France’s Tsonga 6-4 6-7(5) 7-6(1) in a close contest to book a spot in the final eight against Hungarian Marton Fucsovics. After Tsonga lost his serve in the first game of the match, the rest of the match went to serve, with the final two sets decided on tie-breakers.Meanwhile, Pouille won his game 7-6(6) 4-6 6-2 to book a place against Germany’s Jan-Lennard Struff.